Chicago Lives Healthy includes a personalized well-being plan, and helps employees keep track of body weight, food intake and exercise.
Mayor Rahm Emanuel was the first to sign up for the program. He received his health screening today.
"I think this is an important program. I think Chicago is once again leading the country, showing a smart and innovative way not only to improve health but to control the city budget," Emanuel said.
City workers and their spouses can sign up for the wellness program until late August.